________ should never be allowed down a drain when a septic tank and drain field system is being used for sewage disposal.
A. Kitchen wastes from cooking
B. Solid materials
C. Dog or cat urinary or fecal matter
D. Oils and greases
E. Chlorine and antimicrobial cleansers
Answer: E
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Based on the pattern of water table contours, what should be the general direction of groundwater flow in this area?
The question is based on Figure 25-4, showing lakes in the “Alkali Lake, Nebraska” quadrangle (map reduced to approximate scale 1:75,000). These lakes are found in the Sand Hills area of Nebraska where the water table (reflected in the elevations of lake surfaces) is close to the surface.
The idea of cogeneration is to actively use ________ electricity generating plants.
A. Solar as well as coal energy to produce electricity at B. Both electricity and waste steam heat from C. Two kinds of fuel (e.g., coal and oil) at D. Two different types of thermal conversion machines for increased efficiency at E. Warm water as well as steam to produce electricity at
Volcanic eruptions destroy buildings and productive land, and cause injuries and fatalities to life. Why, then, is volcanism considered a constructive process?
Which of the following is a consequence of global climate warming?
A. The distribution of wind and pressure systems will change influencing how much rainfall specific places receive. B. Sea level will not change as evaporation from oceans will counteract the melting of ice contributing water to the oceans. C. Evaporation rates will decrease creating lower relative humidity. D. The tropical rainforest areas will expand due to the increased amount of moisture in the atmosphere due to evaporation. E. Cloud cover will decrease as temperatures rise because it will be harder to get air to cool and create clouds.